Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-11-07
2006-11-07
Feild, Joseph (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S507000, C455S557000, C704S271000, C704S270000
Reexamination Certificate
active
07133696
ABSTRACT:
Changing a mode of operation of a destination communication device by establishing a voice service option communication channel over a network between an initiating device and a destination device. Using the voice service option communication channel, a predetermined sequence of data is transmitted from the initiating device to the destination device. The predetermined sequence of data specifies a different operation mode of the destination device. The destination device receives the data packet and determines if it is a predetermined sequence of data. If the data packet is a predetermined sequence of data then the destination device examines the sequence of data and changes its operational mode in response to the predetermined sequence of data. The predetermined sequence of data may be transmitted in compliance with a TTY standard for data communication.
REFERENCES:
patent: 6381472 (2002-04-01), LaMedica et al.
patent: 6611804 (2003-08-01), Dorbecker et al.
patent: 6768904 (2004-07-01), Kim
patent: 2003/0119518 (2003-06-01), Cleveland et al.
patent: 2005/0063520 (2005-03-01), Michaelis
patent: 0 642 277 (1995-03-01), None
Baker Kent
Feild Joseph
Godse Sandra L.
Perez Julio
QUALCOMM Incorporated
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